How To Set Honeywell Dial Thermostat Temperature. > first, make sure the thermostat is level. Adjust the dial to below original room temperature;
Adjust the set point of the room unit hcw 80 to 30 °c. Adjust the thermostat dial to the farthest point toward the left to check the system’s heating operation.
1 HONEYWELL TH6220D1002 PROGRAMMABLE THERMOSTAT HEAT
Adjust the thermostat dial until the setting exceeds room temperature; After pressing both touch zones for approximately 10 seconds, the maximum temperature should be displayed on the thermostat.